Barren Run is a long 2nd order tributary to Jacobs Creek in Westmoreland County, Pennsylvania.
Variant names According to the Geographic Names Information System, it has also been known historically as: Barnes Run
Course Barren Run rises about 0.5 miles west-northwest of Mendon, Pennsylvania, and then flows southwest to join Jacobs Creek about 0.5 miles southeast of Jacobs Creek.
Watershed Barren Run drains of area, receives about 41.4 in/year of precipitation, has a wetness index of 340.38, and is about 58% forested.
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